Hello,
Thanks for getting in touch with us.
1. First of all, I am assuming that you have already changed the SEO Meta Title and Meta Description with the help of Rank Math:
Add a Meta Description in Classic Editor: https://i.rankmath.com/dhECkg
Add title and description in Gutenberg: https://i.rankmath.com/ZO21Cd
2. Then, ensure that this is the setting in the Schema tab if Rich Snippets are enabled on your website:
https://i.rankmath.com/pG0pcS
To reiterate, the Schema title must show %seo_title% and the description should show %seo_description% – this will ensure your SEO title and SEO Description that you set up via Rank Math can also be used for your schema details:
3. The next step is to check if your title/description is properly set up in the page source:
https://i.rankmath.com/HwXR1o
You can use this tool for the same as well: https://www.heymeta.com/
4. If it matches your settings, then you must check if Google has seen the changes already or not.
For that, please check when the Google cache was updated for that page:
a. https://i.rankmath.com/9q6X0H
b. https://i.rankmath.com/R8N0Uh
If the cache date is from before adding the new meta description, then you just have to wait for Google to re-crawl and re-index the page with the new info. If the date is after you made the changes,
Do note that if everything’s fine and Google still decides to show a different meta title/description for your search keyword, there is nothing you can do as Google sometimes ignores the custom meta info altogether and show something from the page’s content that matches the search intent better.
The best you can do is optimize your meta tags to try and match the intent of the search/keyword.
You can read more about it here
https://support.google.com/webmasters/answer/35624?hl=en
This section sheds light on that:
“Why the search result title might differ from the page’s
tag”
Also, it is completely normal for Google to include your brand name in the title’s automatically – even if you deliberately leave them out from your titles. Not sure where it is picking up your old brand name from though.
Here’s an article mentioning that as well.
https://seo-gold.com/marcus-lemonis-website-seo-review/google-automatically-adds-brand-name-to-titles/
And a link to Google’s forums with replies from Experts saying that it is like that on purpose:
https://support.google.com/webmasters/thread/5328043?hl=en&msgid=5328043
If you wish to know Google’s guidelines on writing Good titles, here are the guidelines straight from the horse’s mouth:
https://support.google.com/webmasters/answer/35624?hl=en
With that said, it largely depends on keyword intent too. For some keyword searches, your custom title might appear while for others – Google might append your brand name to the title and there is nothing you can do to force them to do otherwise. That is regardless of what SEO plugin you use.
Hope that helps and please do not hesitate to let us know if you need our assistance with anything else.